Digital net making machine for plain net and digital net making method for plain net

Abstract

The invention discloses a digital net making machine for a plain net and a digital net making method for a plain net. The net making machine comprises a walking rack which moves along the Y direction and a UV optical etching head which is arranged on the walking rack and can moves along the X direction, wherein the UV optical etching head comprises a UV optical source and a liquid crystal display; the liquid crystal display is positioned between the UV optical source and a plain net, and is arranged in parallel to the plain net; and the UV optical source and the liquid crystal display are respectively connected with a computer. The digital net making method comprises the following step: carrying out computer color separation; carrying out computer strip-type partition on a monochrome picture performed with color separation and the effective display width of the liquid crystal display; when the velocity of the liquid crystal display moving along the X direction is equal and opposite to the rolling velocity of a scroll bar on the display, utilizing the UV optical source to irradiate the liquid crystal display to carry out UV optical etching; and flushing and developing. Since no photographic film is needed for carrying pictures, the invention has the advantages of greatly saved consumable items, saved manpower, lowered cost, high efficiency, stable quality and lower faulty product ratio.

Description

Technical field [0001] The invention relates to the technical field of printing equipment, in particular to a digital screen making machine for printing flat screens; the invention also relates to a digital screen making method for printing flat screens. Background technique [0002] The printing and dyeing industry has to make nets before fabric printing. Most of the traditional flat nets use the photosensitive net making method to make the nets. Before making the nets in this way, use computer color separation software to first print the printed pattern manuscripts in different colors. Perform color separation, each color after color separation forms a different image, transfer the image of the same color after color separation to black and white film; scrape the water-soluble photosensitive glue onto the flat screen, and dry it in a dark room at low temperature. Then, the above-mentioned color separation black and white films are respectively covered on a flat screen (one scre...

AI Technical Summary

Problems solved by technology

The disadvantages of the traditional flat net production method are: many net production processes, slow production speed, complicated process, need to use a large amount of film, high consumables, and can no longer adapt to the increasingly fierce international competition situation.

[0003] In recent years, wax-spraying and ink-jet web-making technologies have been developed at home and abroad. This technology saves the film and the wrapping process before exposure. The diameter of the hole is extremely small (≤0.05mm), which can easily cause blockage of the nozzle, difficult maintenance, and shutdown of production; the cost of consumable materials such as ink and black solid wax blocks used is high, and needs to be imported from abroad, which is controlled by the source of the technology blockade country , It is difficult to popularize and apply wax spraying and inkjet netting technology

[0004] In recent years, laser screen-making technology has also been developed, using the focused high-energy etching laser beam to vaporize the cured glue on the predetermined point of the flat screen and etch the printed pattern. Although the laser screen-making technology also saves the need for film and the wrapping process before exposure, but its disadvantages are: because laser focus etching uses point-by-point etching, the efficiency is very low; lack of safety, high-energy beams are very easy to ignite combustible substances, which is harmful to the printing place. There are great safety hazards in the combustible substances; the cost is high, the laser generator is imported from abroad, the price is high, and the laser generator has the characteristic of light energy attenuation, it is more complicated and expensive to replace the laser generator in the later stage of attenuation

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